When did India carry out the first nuclear test at Pokhran?

Correct option is A

India conducted its first nuclear test at the Pokhran Test Range in Rajasthan on May 18, 1974.
· This test, codenamed "Smiling Buddha".
· Mrs. Indira Gandhi was the Prime minister of India at that time
· India became the 6th country in the world to conduct a successful nuclear test.
· Pokhran-II refers to a sequence of five nuclear bomb test explosions conducted by India on between 11-13th May 1998 at Rajasthan's Pokhran desert.
· Code name of Pokhran-II was Operation Shakti, this was India's 2nd successful attempt.
· At that time,the Indian government led by Prime Minister Atal Bihari Vajpayee.